blob: 4d85bfff0a4e6749990ad4db90c0225326c63857 [file] [log] [blame] [edit]
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2021 ARM Ltd.
*/
#include <linux/printk.h>
#include "common.h"
static void __arm_ffa_fn_smc(ffa_value_t args, ffa_value_t *res)
{
arm_smccc_1_2_smc(&args, res);
}
static void __arm_ffa_fn_hvc(ffa_value_t args, ffa_value_t *res)
{
arm_smccc_1_2_hvc(&args, res);
}
int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
{
enum arm_smccc_conduit conduit;
if (arm_smccc_get_version() < ARM_SMCCC_VERSION_1_2)
return -EOPNOTSUPP;
conduit = arm_smccc_1_1_get_conduit();
if (conduit == SMCCC_CONDUIT_NONE) {
pr_err("%s: invalid SMCCC conduit\n", __func__);
return -EOPNOTSUPP;
}
if (conduit == SMCCC_CONDUIT_SMC)
*invoke_ffa_fn = __arm_ffa_fn_smc;
else
*invoke_ffa_fn = __arm_ffa_fn_hvc;
return 0;
}